It's a long shot, but I still hope that the Veil tears kill so many humans that the elven population will be significantly closer to numerical parity with them.
In related news, elven rape victims have risen 893% with people desperate to enjoy the last few days of their apocalyptic existence and no law authority to protect the weak.
What would you do if it did, though?
Coming from a common persons point of view? Panic. Raid the corpses for armor, live like it's the nuclear apocalypse, find some goods and weaker people to barter with the marauding gangs who have no doubt seized control of the land to protect myself. Standard things that happen when you're faced with no authorities, no more food producers, and generally not enough people to sustain any form of government effectively. In other words, fracturing into tribes and either miraculously working together to repel invaders or turning on each other for survival in a resource dwindling and unsafe world now teaming with undead, possessed inanimate objects, demons, and lord knows what else.
It'll be Day Z or Rust in a medieval setting. Or possibly a closer to home look at what it was like to live in europe during the dark age.